updates

server/internal/handlers/nutrient_handler.go

@@ -0,0 +1,26 @@
+package handlers
+
+import (
+	"net/http"
+
+	"go-server/internal/service"
+
+	"github.com/gin-gonic/gin"
+)
+
+type NutrientController struct {
+	service *service.NutrientService
+}
+
+func NewNutrientController(service *service.NutrientService) *NutrientController {
+	return &NutrientController{service}
+}
+
+func (c *NutrientController) GetAll(ctx *gin.Context) {
+	nutrients, err := c.service.GetAll(ctx)
+	if err != nil {
+		ctx.JSON(http.StatusInternalServerError, gin.H{"error": err.Error()})
+		return
+	}
+	ctx.JSON(http.StatusOK, nutrients)
+}